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Cheap flights from Philadelphia to Saint Croix from $270

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Saint Croix departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to Saint Croix

Cheap round-trip flights

Spirit Airlines Logo
5:15 am - 12:22 pmPHL-STX
6h 07m1 stop
Spirit Airlines Logo
1:27 pm - 12:32 amSTX-PHL
12h 05m1 stop
$270Spirit Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Spirit Airlines Logo
5:15 am - 12:22 pmPHL-STX
6h 07m1 stop
Spirit Airlines Logo
1:17 pm - 12:32 amSTX-PHL
12h 15m1 stop
$274Spirit Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 7
Spirit Airlines Logo
5:00 am - 11:07 amPHL-STX
6h 07m1 stop
Spirit Airlines Logo
4:02 pm - 11:59 pmSTX-PHL
7h 57m1 stop
$279Spirit Airlines
Find Deal
Mon, Sep 29 - Mon, Oct 6
Spirit Airlines Logo
5:33 am - 3:07 pmPHL-STX
9h 34m1 stop
Spirit Airlines Logo
4:02 pm - 11:59 pmSTX-PHL
7h 57m1 stop
$290Spirit Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
American Airlines Logo
8:31 am - 3:35 pmPHL-STX
6h 04m1 stop
American Airlines Logo
4:30 pm - 11:59 pmSTX-PHL
8h 29m1 stop
$435American Airlines
Find Deal
Thu, Feb 19 - Thu, Feb 26
American Airlines Logo
8:31 am - 3:35 pmPHL-STX
6h 04m1 stop
American Airlines Logo
4:35 pm - 7:32 amSTX-PHL
15h 57m2 stops
$439American Airlines
Find Deal
Thu, Feb 19 - Tue, Feb 24
Logo
5:10 am - 12:45 pmPHL-STX
31h 35m2 stops
Logo
4:02 pm - 11:59 pmSTX-PHL
7h 57m1 stop
$453
Find Deal
Mon, Sep 29 - Mon, Oct 6
Logo
5:00 am - 11:07 amPHL-STX
6h 07m1 stop
Logo
9:30 am - 4:15 pmSTX-PHL
6h 45m1 stop
$486
Find Deal
Mon, Sep 29 - Thu, Oct 2
Delta Logo
5:55 am - 2:24 pmPHL-STX
7h 29m1 stop
Delta Logo
3:19 pm - 12:22 amSTX-PHL
10h 03m1 stop
$535Delta
Find Deal
Tue, Feb 17 - Tue, Feb 24
Delta Logo
5:55 am - 2:24 pmPHL-STX
7h 29m1 stop
Delta Logo
3:19 pm - 12:22 amSTX-PHL
10h 03m1 stop
$560Delta
Find Deal
Sat, Feb 21 - Tue, Feb 24

Spirit Airlines flights from Philadelphia to Saint Croix

Our best Spirit Airlines deals on Philadelphia to Saint Croix flight tickets
Spirit Airlines
Dec 5
PHL5:15 amPhiladelphia
6h 07m
1 stop
STX12:22 pmChristiansted Henry Rohlsen
Dec 8
STX1:27 pmChristiansted Henry Rohlsen
12h 05m
1 stop
PHL12:32 amPhiladelphia
$270
Find similar
Spirit Airlines
Jan 31
PHL5:15 amPhiladelphia
6h 07m
1 stop
STX12:22 pmChristiansted Henry Rohlsen
Feb 7
STX1:17 pmChristiansted Henry Rohlsen
12h 15m
1 stop
PHL12:32 amPhiladelphia
$274
Find similar
Spirit Airlines
Sep 29
PHL5:00 amPhiladelphia
6h 07m
1 stop
STX11:07 amChristiansted Henry Rohlsen
Oct 6
STX4:02 pmChristiansted Henry Rohlsen
7h 57m
1 stop
PHL11:59 pmPhiladelphia
$279
Find similar

Delta flights from Philadelphia to Saint Croix

Our best Delta deals on Philadelphia to Saint Croix flight tickets
Delta
Feb 17
PHL5:55 amPhiladelphia
7h 29m
1 stop
STX2:24 pmChristiansted Henry Rohlsen
Feb 24
STX3:19 pmChristiansted Henry Rohlsen
10h 03m
1 stop
PHL12:22 amPhiladelphia
$535
Find similar
Delta
Feb 21
PHL5:55 amPhiladelphia
7h 29m
1 stop
STX2:24 pmChristiansted Henry Rohlsen
Feb 24
STX3:19 pmChristiansted Henry Rohlsen
10h 03m
1 stop
PHL12:22 amPhiladelphia
$560
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Saint Croix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 4, 2025.
Use the filters below to find and compare flights from Philadelphia to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 12/5

5:15 am-12:22 pm

1 stop6h 07m

Christiansted Henry Rohlsen

Mon 12/8

1:27 pm-12:32 am

1 stop12h 05m

$270

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 1/31

5:15 am-12:22 pm

1 stop6h 07m

Christiansted Henry Rohlsen

Sat 2/7

1:17 pm-12:32 am

1 stop12h 15m

$274

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 9/29

5:00 am-11:07 am

1 stop6h 07m

Christiansted Henry Rohlsen

Mon 10/6

4:02 pm-11:59 pm

1 stop7h 57m

$279

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 10/24

5:33 am-3:07 pm

1 stop9h 34m

Christiansted Henry Rohlsen

Mon 10/27

4:02 pm-11:59 pm

1 stop7h 57m

$290

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 2/19

8:31 am-3:35 pm

1 stop6h 04m

Christiansted Henry Rohlsen

Thu 2/26

4:30 pm-11:59 pm

1 stop8h 29m

$435

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 2/19

8:31 am-3:35 pm

1 stop6h 04m

Christiansted Henry Rohlsen

Tue 2/24

4:35 pm-7:32 am

2 stops15h 57m

$439

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 9/29

5:10 am-12:45 pm

2 stops31h 35m

Christiansted Henry Rohlsen

Mon 10/6

4:02 pm-11:59 pm

1 stop7h 57m

$453

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 9/29

5:00 am-11:07 am

1 stop6h 07m

Christiansted Henry Rohlsen

Thu 10/2

9:30 am-4:15 pm

1 stop6h 45m

$486

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Tue 2/17

5:55 am-2:24 pm

1 stop7h 29m

Christiansted Henry Rohlsen

Tue 2/24

3:19 pm-12:22 am

1 stop10h 03m

$535

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 2/21

5:55 am-2:24 pm

1 stop7h 29m

Christiansted Henry Rohlsen

Tue 2/24

3:19 pm-12:22 am

1 stop10h 03m

$560

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Croix from

How to get the cheapest flight ticket from Philadelphia to Saint Croix

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Saint Croix?

American Airlines, JetBlue and Spirit Airlines are the top three most popular airlines that fly to Saint Croix from Philadelphia according to our data. American Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Saint Croix. Keep in mind that there are 6 different airlines that fly to Saint Croix on a routine basis, so you have a few additional options to choose from.

Cheap Philadelphia to Saint Croix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Saint Croix

Direct flights

None
There are no direct flights from Philadelphia to Saint Croix. There are no popular flight routes from Philadelphia to Saint Croix.
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  • When did momondo last update prices for flights from Philadelphia Airport to Saint Croix?

    Prices for flights from Philadelphia Airport to Saint Croix are refreshed on a daily basis.

  • How many operators does momondo search for flights from Philadelphia Airport to Saint Croix?

  • How old do you have to be to fly from Philadelphia Airport to Saint Croix?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Saint Croix.

  • What documentation or ID do you need to fly to Saint Croix?

    The travel and health documents you'll need for your trip to Saint Croix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Croix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to Saint Croix

Compare and see reviews for airlines that fly from Philadelphia to Saint Croix with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.8
3,195 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $229Free CancellationRating
6.3
8,016 reviews
Search Spirit Airlines flights
DeltaPriceFrom $299Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $373Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Saint Croix?

Finding the right flight to Saint Croix from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Croix quick and easy, saving you time and money.

Can I find flights from Philadelphia to Saint Croix with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint Croix from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Saint Croix?

Once you have performed a search for Philadelphia to Saint Croix flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Saint Croix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Saint Croix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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